This work presents the first results of the use of phosphogypsum (rejection of the production of phosphoric acid) in the manufacture of concrete. We show that from the point of view of the physical characteristics and aspects required, mechanical performance tests performed on hardened concrete specimens manufactured in the laboratory at different addition dosage and ages have been shown. The introduction of this waste at mass percentages up to 15% gives encouraging behaviors of concretes formed for specific applications (non-load bearing concrete).